single covalent bonds r stronger dan double n triple bonds . yet H2 gets substituted wth Cl2 4m CH4 or other saturated hydrocarbons in presence of sunlight . y ?

Asked by shuchi.saumya | 23rd Jul, 2010, 12:00: AM

Expert Answer:

For substitution reaction, energy is required like sunlight.

Answered by  | 26th Jul, 2010, 11:15: AM

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